Alps Electric has developed the HMLSR Series of Liqualloy magnetic sheets for radio frequency identification (RFID) applications. The magnetic sheets utilize Alps`Liqualloy metallic glass powder to boost the sensitivity of RFID antennas.
The company developed this product as one that enhances electromagnetic compatibility (EMC), eliminating the problem of interference with waves that should reach the wireless tag from radio or electromagnetic waves generated by nearby parts and devices. The sheet employs the proprietary Liqualloy, a metallic glass powder consisting primarily of iron. The amorphous structure of Liqualloy allows a high degree of freedom in the shaping process, and it displays soft magnetic properties that can be readily activated by exposure to magnetic fields. In addition, its high permeability is 1.3 times greater than that of Fe-Al-Si alloys, the leading magnetic material, giving it superior capacity to absorb radio and electromagnetic waves. The sheets make full use of the freedom in shaping and the highly permeable characteristics of Liqualloy.
In RFID technology, it is not unusual to install parts and devices on the back of wireless tag antennas that send and receive data from the tag between devices. Under some conditions, this causes interference with waves that should reach the antenna. The sheets focus waves to the antenna, increasing RFID antenna sensitivity.
Features
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Dimensions: (H × W) 150mm × 180mm (Standard), 180mm × 300mm (Maximum)
Thickness 0.05mm, 0.10mm, 0.20mm, 0.50mm
Effective frequency range for control of EMC noise: 13.56MHz
Operating temperature range: -40 grad C to +130 grad C
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